Review of Colombian Conchostraca (Crustacea) — ecological aspects and life cycles — family Cyclestheriidae

Author(s):  
Ewald W. Roessler
2000 ◽  
Vol 6 (5) ◽  
pp. 529-542
Author(s):  
J. Gänssmantel

Abstract Construction affects our environment to a significant extent and therefore, there is an increasing request for building materials and products in both new and old constructions to be evaluated with regard to their sustainability. This concerns both maintenance and restoration measures in an increasing way. These measures are necessary to keep our built environment in a reasonable state and to enable us to use them in the future. This also includes the extension of the life time of buildings. In this contribution most promising methods and criteria to evaluate the sustainability of maintenance or restoration processes and products are summarized and explained using two practical examples of building life cycles


Diversity ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 321
Author(s):  
Cynthya E. González ◽  
Monika I. Hamann ◽  
Marta I. Duré

This is the first review of the nematode parasites of amphibians from Dry Chaco (DC) and Humid Chaco (HC) ecoregions of South America, covering aspects related to their systematics, distribution, host range and ecology, including their life cycles. Of approximately 100 species of amphibians that inhabit these ecoregions, the nematode parasites of 32 species are known. The parasite species consisted of 51 taxa: 27 in HC and 18 in DC. The family Cosmocercidae alone included 18 species. Aplectana hylambatis and Cosmocerca podicipinus showed the widest geographical and host distribution. Leptodactylus bufonius and Rhinella major presented a high number of nematode parasites. The species richness of nematodes was related to the host body sizes and to the strategy to obtain prey. The mean species richness was higher in terrestrial amphibians with intermediate characteristics in the generalist–specialist spectrum in terms of diet, and in amphibians with intermediate characteristics between actively foraging and the “sit-and-wait” approach in terms of searching for prey. The patterns of similarity among amphibian species showed groups linking with their habitats. Nematodes usually have direct life cycles with the infectious form entering the host passively or actively. However, many amphibians are also involved in heteroxenous cycles that develop in the aquatic environment.


2005 ◽  

This comprehensive, authoritative and up-to-date work provides the definitive overview of marine parasites worldwide. It is an invaluable reference for students and researchers in parasitology and marine biology and will also be of interest to ecologists, aquaculturists and invertebrate biologists. Initial chapters review the diversity and basic biology of the different groups of marine parasites, discussing their morphology, life cycles, infection mechanisms and effects on hosts. The ecology and importance of marine parasites are discussed in the second part of the book, where contributions investigate behavioural and ecological aspects of parasitism and discuss the evolution and zoogeography of marine parasites. In addition, the economic, environmental and medical significance of these organisms is outlined, particularly their importance in aquaculture and their effects on marine mammals and birds. Written by an international team of contributors, the emphasis is on a thorough grounding in marine parasitology combined with reviews of novel concepts and cutting-edge research.


Life cycles for broadcast-spawning marine invertebrates are characterized by a pelagic (larval) and benthic (juvenile and adult) stage, which are differentiated by the process of settlement and metamorphosis. While settlement and recruitment are concepts that primarily deal with the ecological aspects of this transition, they are often accompanied by a drastic morphological and developmental transition. Larval transport, the means of reaching suitable settlement sites, is difficult to study, but insights from genetics, behavior, sensory ecology, and oceanography have provided important insights....


2019 ◽  
Vol 12 (1) ◽  
pp. 77-87
Author(s):  
György Kovács ◽  
Rabab Benotsmane ◽  
László Dudás

Recent tendencies – such as the life-cycles of products are shorter while consumers require more complex and more unique final products – poses many challenges to the production. The industrial sector is going through a paradigm shift. The traditional centrally controlled production processes will be replaced by decentralized control, which is built on the self-regulating ability of intelligent machines, products and workpieces that communicate with each other continuously. This new paradigm known as Industry 4.0. This conception is the introduction of digital network-linked intelligent systems, in which machines and products will communicate to one another in order to establish smart factories in which self-regulating production will be established. In this article, at first the essence, main goals and basic elements of Industry 4.0 conception is described. After it the autonomous systems are introduced which are based on multi agent systems. These systems include the collaborating robots via artificial intelligence which is an essential element of Industry 4.0.


Author(s):  
T.I., Abdulganieva ◽  
◽  
Sh.G. Samedov ◽  
S.A., Mamaev ◽  
A.S. Kurbanismailova ◽  
...  

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